Gash indicator and register



5 Sheets-Sheet 1.

F. L. BAILEY.

CASH INDICATOR AND REGISTER.

(No Model.)

No. 577,395. Patented Feb. 16, 1897.

j M Ma &

WITNESSES.

NVENTOR Mrs; 1/8 ATTORNEY.

1 was c0. nnovwuruu. wAsNlNs 5 Sheets-Sheet 2.

(No Model.)

F.'L. BAILEY. CASH INDICATOR AND REGISTER.

| I I I I INE flaw N TC R ATTORNEV A WITNESSES I 5 Sheets-Sheet 5.

(No Model.)

P. L. BAILEY. CASH INDICATOR AND REGISTER,

No. 577,395. Patented Feb.v 16, 1897.

BY m

ATTORNEY.

WITNESSES.

1n; man/s PETERS co. PHOTO-LUNG" WASHINGVM. o. c.

UNITED STATES PATENT OFFICE.

FORTUNE L. BAILEY, OF NORTHAMPTON, MASSACHUSETTS, ASSIGNOR, BY MESNEASSIGNMENTS, TO ROBERT F. HERRIOK, TRUSTEE, OF BOSTON,

MASSACHUSETTS.

CASH lNDlCATOR AND REGISTER.

SPECIFICATION forming part of Letters Patent No. 577,395, dated February16, 1897.

Application filed July 2'7, 1 894.

T aZZ whom, it ntaty concern:

Be it known that I, FORTUNE L. BAILEY, a citizen of the United States,residing at Northampton, in the county of Hampshire and Commonwealth ofMassachusetts, have invented a certain new and useful Improvement inCash Indicators and Registers, of which the following is aspecification.

My invention relates to cashindicators and I0 registers; and it consistsin the devices and combinations hereinafter described and claimed, andhas for its object a simpler and better construction of the machine withparticular reference to the connection of the keys with the mechanismwhich drives the registering devices, to the coupling ofpartiallydepressed keys in different banks or sections, to the inufliingof the alarm-bell, to the looking up of the machine to prevent anyoperation thereof both by a key used by the cashtaker or salesman incharge when the case of the machine is closed and by means inside thecase to be manipulated by the proprietor after opening the case, tosecuring the top plate of the case to prevent the removal thereofwithout first opening the case, and to properly distributing the straincaused in raising the rock-plate.

In the accompanying drawings, on five sheets, Figure l is a verticalsection on the line 1 1 in Fig. 6 of the case and drawer, showing theframe and operative mechanism in left-side elevation; Fig. 2, a plan ofa part of the top plate of the case and of a part of the side of casesecured thereto, said top plate being partlyin horizontal section, alsoshowing in plan a part of the latch which secures said top plate to saidcase; Fig. 3, a vertical section on the line 3 3 in Fig. 2; Fig. 4, aplan 4 a of parts of keys and a part of the slotted guard- Serial No.518,697. (No model.)

moved in the opposite direction, the rockplate, the drawer-unlockingdevices and the devices which prevent the operation of the machine;Figs. 7, S, 9, and 10, vertical sections on the lines 7 7, 8 S, 9 9, and10 10, respectively, in Fig. (5, each of said figures showing in sectionthe rock-plate and cross-girth and one of the slides, the slide in eachfigure being partly in section and partly in elevation, Fig. 7 showingthe bell-ringing slide; Fig. 8, the drawer-unlocking slide and part ofthe drawer; Fig. 9, the rack-slide, and Fig. 10 the slide which unlocksthe rock-plate and allows the keys to be operated whether the drawer isopen or closed, and in side elevation the cam which operates said slideand the lock which automatically engages said rock-plate when the draweris opened and is disengaged therefrom by the closing of the drawer; Fig.11, avertical sectioninthe same plane as Fig. 10 and showing the partsshown in Fig. 10, and also a part of the drawer, the cam being in itsinoperative position; Fig. 12,

a rear elevation of the frame, tablet-rods, rock-plate, coupling-bar,stationarycoupling- 7 5 cam, the rock-plate lock, tablet-rod supports,and part of the tablet-rods; Fig. 13, a vertical transverse section onthe line 13 13 in Fig.

1 of the frame, keys, rock-plate, rock-plate lock, parts of thetablet-rods, the couplingcam, and the coupling-bar, the keys and saidcoupling-bar being in their normal position; Fig. 14, like Fig. 13,except that the coupling-bar is raised and three keys are coupled; Fig.15, a horizontal section on the line 15 15 in Fig. 1 of a part of thecase and a plan of the drawer-opening springs and apart of the drawer;Figs. 16 and 17, right-side elevations of the bell-muffiing cam andlever and a vertical section of the bell-hammer, the 'cam being inoperative position in Fig. 16 and out of operative position in Fig. 17;Fig. 18, a plan of the rockplate and the slides shown in Figs. 7 to 11;Fig. 19, a left-side elevation of a key, registering-wheels, and their 5drivingplates; Fig. 20, a vertical section on the line 20 20 in Fig. 21of the registeringwheels, the stud on which they turn, and the hub ofthe driving-pawl; Fig. 21, a vertical section of the keys on the line 2121 in Fig.

19 and a front elevation of the ratchet-wheels, retaining pawl, drivingand transferring mechanism, the driving-plate being in its lowestposition; Fig. 22, like Fig. 21, except that the ratchet-wheels areomitted and the driving-plate is raised.

The case A, Figs. 1, '2, 3, O, and 15, contains the frame 13, has glazedapertures 61. a, through which the tablets may be read, and contains asliding drawer C, all in the usual manner, except that the top plate ais secured to the top of the case A by means of screws aZwhich areentirely within the case and cannot be manipulated without opening thedoor a of the case, which is provided, as usual, with a lock a, only tobe opened by the key of: the proprietor. The screws a are driven up intothe top plate through a elip-plate a, which extends under a ledge orflange a, cast or otherwise secured to the inside of the sides of thecase at the top thereof, as shown in Figs. 1, 2, and

The drawer O when unlocked by the means hereinafter described or by anyusual means is caused to project from the front of the case by twosprings c 0, Figs. 1 and 15, of wire coiled about vertical studs 0' 0',supported in brackets 0 0 cast on or otherwise secured to the inside ofthe rear wall a' of the case, near the sides of the case, one short arma c of each spring passing through a lug a, cast on said wall a whilethe other or long arm c of each spring presses against the back of saiddrawer or against a bearing-plate e, secured to said back and providedat the upper and lower edges with horizontal flanges c which preventsaid springs from 1'is ing above or falling below said plate. Thisconstruction allows of the use of very long spring-arms and a greatermovement of the drawer than where a leaf-spring is secured midwaybetween its ends to the back of the ease.

\Vithin the case, above the drawer, is arranged the frame 13, whichsupports the op erating mechanism. The keys I) turn upon a commonfulcrum-rod L1 and carry pawls (1, which engage numbered ratchet-wheelsE when the front or outer ends of the keys are depressed, a singledepression of any key turning the corresponding ratchet-wheel E onetooth and each wheel E having a projecting pin or long tooth (not shown)which engages another ratchet-wheel E once in every revolution of saidwheel E and gives said wheel E a partial revolution, substantially asshown and described in Patent No. 271,303 to Kitty and Birch, datedJanuary 30, 1883.

To prevent tampering with the mechanism by a wire or pin introduced intothe ease through the slots a in which the keys move, each key isprovided with an arc shaped guard (1*, the front convex surface of whichis concentric with the fulcrum-rod (Z and fits and slides upon acorresponding concave bearing-surface a" in the rear face of the frontwall a of the case A, as shown in Figs. 1, i,

and 5, said surface a" being longer and wider than the correspondingslot a.

Upon the rear end of each key I) rests a vertical tablet'rod F, carryingat its upper end a tablet f, numbered to correspoml with the number onthe key and raised by the depression of the corresponding key intoposition to be seen through the apertures a a, and the stems f of saidtablets are offset in a forward or backward direction, as shown in Fig.1, to prevent said tablets from interfering with each other.

Extending above but not touching the rear arms of all the keys is askeleton rock-plate G, Figs. 1, 6, 12, 123, 11-, and 18, consisting oftwo equal side arms g g, pivoted upon the folcrum-rod (.Z and rigidlyconnected to each other by a cross-bar (the part which re upon the keys)and by the rock-plate shaft g ,wh ieh turns freely in said side arms gg, said crossbar and shaft being horizontal and parallel with saidfulcrum-rod. To each end of the rock-plate shaft is secured a pinion g,which engages a corresponding statimiary a re' shaped rack rigidlysecured to the frame 13, concentrically with said fulcrum-rod (I, sothat whatever the position of the rock-plate the axis of said rock-plateshaft and fulcrumrod always lie in the same plane with each other. (SeeFigs. 1, t3, and 18, also Figs. 7 to 11..)

The rear ends of the side arms g 5 are provided with transverse slots orways g, in which slides the coupler or coupling-bar 1i, retained in saidslots by caps secured thereto by screws g. The coupling-bar if isprovided with a backwardly-extending pin it, Figs. 1, 12, and 18, whichenters a cam-slot 1' in the stationary cam I, secured by screws t" l tothe back of the frame B, the longest upper portion 1 of said cam-slotbeing vertical, the shorter middle part i th reof being laterallyinclined, and the shortest and lowestpart 1' of said min-groove beingvertical.

From the front face of the couplingdiar l[ extend a series of horizontalprojections 7t, equal in number to the keys and i'iormally reachingbetween the rear ends of the kcvs which are provided with side flanges(1,Figs. 13, 11-, and 19, so that said projections ll nearly fill thespaces between the rear ends of the keys. \Vhen the front end of any keyis depressed, its rear end rises out from between the adjacent couplingprojections 7t, and immediately afterward the rear arm of said key inrising strikes the crossbar f of the rock-plate G and raises thecoupling-bar, lifting the coupling projections out from between the keysuntil the pin 7t reaches the inclined part f of the cam-slot a, whichgives to said coupling-bar an endwise motion and causes said couplingprojections to move laterally over the rear ends of all the keys whichremain at rest and. under the rear end of the partially-deprcssed key,so that if two or more keys are sufficiently depressed to raise theirrear ends above the corres ionding coupling IIO projections a furtherdepression of any depressed key will cause the other partly-depressedkeys to be equally depressed.

The use of the key-coupling devices above described enables a number ofkeys, placed too far apart to be simultaneously depressed by the directpressure of the operators fingers, to be partially depressed, one ormore at a time, and their action to be completed by the completedepression of any of said keys and prevents the machine failing of itsdesigned operation by reason of the fingers accidentally slipping fromany of the partially-depressed keys.

A key depressed sufficiently to become engaged by the couplingprojections above described can evidently only move in either directionwith the rock-plate, and the rock-plate is prevented from moving ineither direction until its movement in the other direction is completedby a double pawl J, the same be ing a lever pivoted between its ends atj 011 a cross-girth b of the frame B and provided at each end with atooth or pawl j j adapted to engage a rack j j on the rack-slide J Figs.6, 9, and 18. The rack-slide J is moved vertically in suitable ways I)Z1 on said crossgirth Z) by the movement of the rock-plate, a lateralproj ectionj on said rack-slide, near its lower end, entering a slot 9*in a projection 9 formed on the cross-bar 9 The teeth of the rack hookdownward and are engaged by the pawlj when the rock-plate and rack-slideare rising and the teeth of the rack hook backward and are engaged bythe pawl j when said rock-plate and rack-slide are returning ordescending. YVhen the movement of the rackslide is just being completedin either direction, aprojectionj, arranged on said rack-slide betweenthe racks 7' j", strikes the pawl then in engagement and turns thepawl-lever J upon its fulcrum, forcing said last-named pawl out ofengagement with one rack and the other pawl to engage the other rack.The pawllever is held in either of its positions by a pawl-retainer f,Fig. (3, consisting of a rod having a head j beveled in oppositedirections, as shown, and pressed against a similarly-beveled free endof a projection j, cast or otherwise secured on said pawl-lever by aspring j held in a socket j, cast or otherwise secured on saidcross-girth Z), and compressed between the closed end of said socket andsaid headj A bell-ringing slide K is guided vertically in ways b h,Figs. 1, 6, and 7, on said cross-girth Z), said slide having a bracketor projection 7c, in which a vertical screw it" turns, said screw beingprevented from turning when properly adjusted by a check-nut 7.5 Therockplate in its upward movement strikes the lower end or point of saidscrew 7t and raises said slide K. A bent trip-lever 75 is pivoted on theslide K and its lower end is provided. with a backward projection 7;,which strikes against the side of said slide and prevents saidtrip-lever being turned by downward pressure on its upper end. As theslide K is raised the upper end of the trip-lever raises the lower end Zof the ha1nmer-lever Z against the resistance of the spring Z secured tosaid lower end Z and a stud 12 secured on the cross-girth b, and turnssaid hammer-lever on its fulcrum Z until said trip-lever passes said endZ, and the hammer-lever is suddenly restored to position by thecontraction of said spring Z causing the upper end or hammer Z of saidhammerlever to strike the bell or gong L and sound an alarm. The slide Kis restored to position by the pressure of the rock-plate in its returnmovement upon the projecting foot k of said slide.

here the sound of the bell is unnecessary or objectionable, it may beprevented by turning the button M, secured on a rod 071, which passesthrough the side of the case, Figs. 1 and 6, and turns in suitablebearings b b on the cross-girth b and has secured on its inner end a camm, which, when said button M is turned in one direction, depresses anarm Z of the hammer-lever in such a manner as to turn the lower end ofsaid hammerlever out of the path of the trip-lever k Such a device iscommonly called a bellmu flier. The rod m may be prevented from beingturned by accident or design without the consent of the proprietor by aslotted fork m which slides on a stud on the frame 13 within the case Aand is adapted to embrace a part of said rod, which is square incross-section, as shown in Fig. 1. Vhen the fork is not engaged withsaid rod, the ringing of the bell may be regulated by the attendant.

The drawer-unlocking slide N, Figs. 6 and S, is guided vertically inways Z7 Z) on the cross-girth I) just as the slide K is guided, and isprovided with a projection it, screw it, and check-nut 12 whichcorrespond in form and function to the above-described projection it,screw 7c, and check-nut k 011 said slide K, the point or lower end ofthe screw nbein g raised by the rock-plate to lift the slide N at aboutthe time when a key is fully depressed. The slide N carries the bolt nwhich locks the drawer into the case, and which, being raised with saidslide, allows the drawer to be thrown out by the springs abovedescribed. A part of the strain and friction of the bolt 01 is sustainedby an antifriction-roll n, which turns in a bracket a, secured to theframe of the machine. The lower end of said bolt is beveled at n toenable the back of the drawer C to slide under said bolt when the draweris pushed back into the ease. Another slide 0, Figs. 1, 6, 10, and 11,is guided vertically in ways 1) b on the cross-girth b, and like slidesJ, K, and N is arranged back of the crossbar g and is provided near itslower end with an incline 0, which slopes downward and backward. Saidslide 0 may be raised by turning a sleeve 0, which carries a cam 0 andturns upon a horizontal stud 0 which projects from the front of saidslide and bears upon a stationary part of the cross-girth b.

llelow the cross-girth Z) arranged a lock. 0', consisting of a hook 0,secured upon. a hori zontal bar (I, which slides in brackets 7.) b andis drawn forward by the contraction. of a spring 0, which connects saidbar and the front bracket D and tends to draw said hook 0 over thecross-bar of the rockplate and prevent the operation of said rockplate;but this hook o" is pushed out of engagement with said cross-bar whenthe drawer is pushed into the case and remains out of engagement whilethe drawer is locked.

\Vhen the drawer is open, the hook 0 nor mally engages the rock-plateand prevents the depression of any key, that is, prevents the operationof the machine, inasmuch as in a great pressure of business it i.sometimes desired to use the machine without spending the time necessaryto close the drawer after each sale. The hook o' is provided with alateral projection or pin 0 which, with said hook, is crowded backwardby the incline- 0 above described, when the slide 0 is raised, until thehook is back of the cross-bar of the lock-plate, as shown in Fig. 10.

The registering mechanism is shown in Figs. 19 to 22 and includes tworegistering ratchets P I and their operating mechanism. One, 1, of saidratchets turns on a stud p, circular in cross-section, except ashereinafter stated, and which stud enters a hole in the cross-girth Z1and is held therein by a washer 1), arranged on the back of said girthU", and a screwp", which passes through said washer into said stud anddraws a fixed collar-p on said. stud against the front face of saidcrossgirth. The collarp has two opposite vertical faces 1) to lit thecentral slot of the drivingplatc Q, the rear face of which rests againstthe flat surfaces on the front of the unrcdueed part of said collar. Thelever q turns on said stud 1') immediately in front of said plate Q andcollar 1), the ratchet 1 being arranged in front of said lever (1, theratchet l turning on the hnbp of said ratchet P, and a disk or dial pturning on said stud in front of said ratchets and being caused torotate with the rear ratchet l by means of pins 1') which project fromthe hub of said ratchet P and enter corresponding holes 11 p in the rearface of said disk I. The plate Q is guided vertically by washers Q2,rabbeted at (f partly through to form slides or ways and to hold saiddrivingdate out of contact with the cross-girth U and pawl-stop plate R,said washers entering slots gin said driving-plate Q and being securedto said cross-girth b by cap-screws (I which secure other washers infront of said driving-plate Q against said. first-named washers. Thelever q is con neetcd to the driving-plate by a link or connecting-rodpivoted at q to the outer end of said lever and at (f to saiddriving-plate, and carries a pawl (1 pivoted on said lever and held inengagement with the ratchet l. by a spring (1" in an obvious manner.

Evidently a vertical. reciprocation of the erases driving-plate willrotate the ratchet P. The ratchet I is provided with. a pin p", whichonce in every revolution of said ratchet stri kes and passes thedownhanging arm 1)" of a mwl-slide p, having a pawl p or tooth held inengagement with the teeth of the ratchet p by spring p, (represented asa spiral spring stretched between an ear 7/ on said slide and an ear 1)on a block p which is secured to the cross-girth Z) by screws 11"" andis grooved on the back atp to sup 'iort and guide the pawtstop plate R.Said pin p strikes said arm p" and causes the slide p" to move farenough to turn the ratchet ,1) an angular distance measured by one tooththereof, and then passes said armp, and the spring 1) draws said slideover the following tooth of said ratchet Q)".

The ratchets l? l are prevented from any lnickward movement which mightotherwise be caused by the friction of their 1: pective im'iclling-pawls g p by spring-retaining pawlsp p secured on a block 11'fastened to the cross-girth b.

To prevent over-registration by the ratchet I a stop-pin r is soarranged. that the pawl at the end. of its downward or impel lingstroke, being then in the bottom of an 'interdental space of saidratchet, is wedged between. said pin and said ratchet and absolutelyprevents the further rotation of said ratchet. This pin r is supportedona vertically-s1iding stop-plate 't, which raised or lowered by turningthe eccentric stud 9" (which is supported in the crossgirth 11') in ahole '1'" insaid plate, said hole being shaped, as shown in Fig. 22, sothat the vertical diameter of the hole is the same as the verticaldiameter of the stud, whatever the position of said stud, aquarter-rcvolution of the stud being sullieient to raise or lower saidstop-plate, and said plate being lowered when it is desired to restorethe ratchet l to its zero position. to allow the pawl to swing over theteeth of said ratchet as the ratchet is turned by turning the milled hubif of the dial 1.

The coupling-plate b is secured to the driw ing-plate Q by screws s s,which pass loosely through horizontal slots s s in said couplingplateand allow said coupling-plate to have a lateral motion on saiddriving-plate, and such a lateral motion is given to said cou1ling-plate by a horizontal. stud. s rigidly secured inthe cross-girth Uand projecting through a slots, the lower longer portion .9 of which isvert ical, while the upper portion of said slot is inclined,l igi 21andi32,iu such anninnerthat when the coupling-platc is pushed upward itmoves laterally as well as upward duringthe first part of its upwardmovement. The lower edge of the cou1. ling-plate is provided with hooks.9", arranged at the same intervals as the keys, said hooks pointing inthe same direction as the lateral movement of thecouplingplate takesplace when said coupling-plateis being raised, and said hooksenteringhorizontal slots d in the keys I) when the front ends of saidkeys are sufficiently depressed, this engagement taking place in thebeginning of the movement of the coupling-plate and driving-plate andcontinuing until said plates have nearly returned to their normal position, and requiring the movement of said plates to be uniform with thatof the actuating-key, and preventing any rebounding of said plates fromsaid key, such as might cause a double registration for one movement ofthe key.

It will be understood that the hooks s are arranged at such differentdistances from the plane of the keys when the latter are at rest that acomplete depressionof any key will move the ratchet P an angulardistance meas ured by a number of teeth corresponding to the numberborne by such key.

The dial P and ratchet P are figured near their margins, Fig. 21, toindicate the number of teeth on the ratehets P P, and these numbers areread through a peep-hole t in the face-plate T, and said ratchet P will,if used to register cents, have exactly one hundred teeth, so that thenumbers shown on the dial will indicate cents andthose on the ratchetsdollars.

The registering mechanism last above de scribed may be used inconnection with the detail-adder, of which the wheels E E form a partand which registers the work of each key separately, said last-deseribedmechanism constituting a total-adder, w iich registers the amount of allthe work of all the keys of the machine, or may be used as a sectionaladder that is to register the work of all the keys of a section or bankof keys.

The tablet-rods F when raised by the depression of the keys are thrownforward upon a horizontal ledge Z) on the frame B; but just before theraising of such tablet-rods the tablet-rods previously raised areknocked off from said ledge by a horizontal releasing-bar U, supportedby two bent levers a, one ateach side of the machine and pivoted on saidframe B in such a manner that said bar U may swing over the top of saidledge. The bar U is thrown forward by the upper arms 1; of bent levers V(there being one such lever at each side of the machine, pivoted on therock-plate G) striking the backwardly-extending free ends of said leversu, Figs. 1 and 18. The upper arms 1; of the levers V rise above thelevers a after striking the latter, and said levers V are turnedforward, when the rock-plate returns to position, by striking againstsaid levers u and are restored to position by weights 4; atthe ends oftheirlower horizontal arms "v In order that the barV may not be thrownforward by rebounding or by the levers V striking the levers 21. duringthe return movement of the rock-plate G, said rock-plate is providedwith lateral projections g, (one on each side,) which reach throughslots 1), concentric with the fulerum-rod cl, just back of said levers'u, and the backs of said levers u are provided with curved projectionsu, which are struck by said pins.

A Y-shaped slide \V, Figs. 1 and 6, is provided with slots to, throughwhich screws 10" are driven up into the top of the case A, enabling thestem 20 of the slide V to be moved over the rack-slide J by the bolt 10of the lock 10 (operated by a key inserted in the cylinder w of saidlock win the usual man ner) to prevent the rising of said slide J andtherefore the raising of the rock-plate and the depression of any key.By turning the key in the other direction the stem 10 is moved off fromthe slide J. This device enables the attendant to lock up the machineduring a temporary absence.

1 claim 1. The combination of keys, at registeringratchet, a lever,having a fulcrum concentric with said ratchet, a pawl, carried by saidlever, and engaging said ratchet, a verticallyreciprocatingdriving-plate, a rod, connecting said plate and lever, a coupling-plate,movable with said driving-plate vertically and movable on saiddriving-plate laterally and having a slot, vertical nearly throughoutits length but inclined at the top thereof, and an immovable horizontalstud arranged in said slot,to give said coupling-plate a lateral movement at the beginning of its vertical movement, said plate havingprojections adapted to engage the slots in said keys when said keys aredepressed, as and for the purpose specified.

2. The combination of keys, a registeringratehet, a lever, having afulcrum concentric with said ratchet, a pawl, carried by said lever, andengaging said ratchet, a verticallyreciprocating driving-plate, a rod,connecting said plate and lever, a coupling-plate, movable with saiddriving-plate vertically and movable on said driving-plate laterally andhaving a slot, vertical nearly throughout its length but inclined at thetop thereof, and an immovable horizontal stud arranged in said slot, togive said coupling-plate alateral mo vement at the beginning of itsvertical move ment, said plate having projections adapted to engage theslots in said keys when said keys are depressed, said projections beingarranged at proportional vertical distances from said keys to enablesaid pawl to move said ratchet through proportional annular distancesunder the operation of said keys, as and for the purpose specified.

3. The combination of keys, a rock-plate, arranged above said keys andmoved by the depression of any of said keys, at coupling-bar carried bysaid rock-plate and movable laterally thereon and having key-engagingprojections, and a cam engaging said couplingbar, to move saidprojections into engagement with two or more partially-depressed keys,to cause all such partially-depressed keys to move in unison during theremainder of their movement, as and for the purpose specified.

4. The combination of keys, a rock-plate rock-plate, a drawer, slidinginsaid case and when closed holding said hook out of engagement with saidrock-plate, said hook being adapted to be engaged by said incline and tobe forced out of engagement with said rockplate when said drawer isopen, and a cam within said case turning 011 a stud with which saidslide is provided, to raise said incline in to engagement with saidhook, as and for the purpose specified.

(5. The combination of the rock-plate, a shaft, pivoted therein parallelwith the i'ulcrum of said plate, pinions, rigidly secured. on said shaftat opposite sides of said plate, and stationary are-shaped racks,concentric with said fulcrum, engaged by said pinions, as and for thepurpose specified.

In witness whereof I have signed this specification, in the presence oftwo attesting witnesses, this 6th day of July, A. l). 1180}.

FORTUNE L. BAILEY.

lViL-ncsses:

ALBERT M. iii cone, A cnns I; AlLlE Y.

